Average annual temperature is 26.5 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 22.5 °C
Number of sunny days: 47 days
Number of rainy days: 318 days
Look at detailed online map of Brummer Island
* Weather data for Brummer Island Papua New Guinea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.5 | 31.2 | 31.3 | 30.5 | 28.9 | 28.4 | 27.9 | 26.6 | 26.8 | 27.1 | 29.0 | 30.5 |
| Average daytime temperature (°C) | 29.7 | 29.4 | 29.1 | 28.7 | 27.5 | 27.2 | 26.3 | 25.7 | 26.0 | 26.3 | 27.2 | 28.7 |
| Average temperature (°C) | 28.1 | 27.8 | 27.7 | 27.4 | 26.6 | 26.3 | 25.6 | 24.8 | 25.2 | 25.5 | 26.1 | 27.3 |
| Average night temperature (°C) | 26.7 | 26.6 | 26.5 | 26.1 | 25.6 | 25.3 | 24.6 | 23.9 | 24.4 | 24.7 | 25.1 | 26.1 |
| Absolute minimum temperature (°C) | 25.3 | 25.5 | 25.1 | 24.8 | 24.0 | 24.3 | 22.9 | 22.6 | 22.5 | 23.3 | 23.2 | 24.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.7 | 12.4 | 12.2 | 11.9 | 11.6 | 11.5 | 11.6 | 11.8 | 12.0 | 12.3 | 12.6 | 12.7 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 10.2 | 9.0 | 9.8 | 10.4 | 6.4 | 8.8 | 8.5 | 10.1 | 9.3 | 8.5 | 10.2 | 11.1 |
| Precipitation (mm) | 52 | 230 | 270 | 124 | 514 | 211 | 251 | 168 | 179 | 240 | 129 | 187 |
| Sunny days | 7 | 4 | 8 | 3 | 1 | 1 | 1 | 3 | 3 | 3 | 5 | 8 |
| Rainy days | 24 | 24 | 23 | 27 | 30 | 29 | 30 | 28 | 27 | 28 | 25 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Brummer Island is at